Spring for doors



June 5, 1923. 1,457,714 c. MONTAGNA S PRING FOR DOORS Filed May 17, 1921 @MZL- f Patented June 5, 1923.

warren STATES;

i ama CHERUZBINO MONTAGNA, or- CECIL, PENnsYLvANrA.

' [SPRING ron noons.

Application filed May '17, 1921. 1 Serial No. 470,396.

To all whom z'zfmag concern:

Be it known that I, OHERUBINO MONTAGNA,

a subject of the King of Italy, and resident of Cecil, in the county of Washington and 5 State of Pennsylvania, have invented certain, new and useful Improvements in Springs for Doors; and I do herebydeclare the following to be a full, clear, and exact descrip tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention consists in certain novel features and details of construction as will be more fully. described hereinafter and finally pointed out in the claim.

' In the drawings, Figure 1, is a side elevation of a door and frame showing my improved spring attached thereto.

Fig. 2, is a plan view of the spring detached. Fig. 3, is a detail view of the ratch- The plate C, is provided with lugs or shoulders D,'-and E, near each end thereof for receiving the ends of a; pin F, around which is coiled a spiral spring G, the construction of which'will bemorefully described hereinafter. i

Secured on the pin F, at or near the center thereof-is, an arm or lever H, which is slotted 40 at the rear end for receiving a tongue formed ,on the spring G, near the center thereof and is also slotted at or near the outer end and provided with a revolving disc or wheel I,

which forms a bearing'which is adapted to or wheel from scarring the door, As Will be seen, a small ratchet-wheel L, is secured on the upper end of thepin F,

which is adapted to be engaged by a pawl' M, which is secured on the lug D. This for holdingthe-arm or lever back in poi use engage in a groove .or recess J, in, a plate K, which-is secured on the face of the door A,- the purpose of which is to prevent the disc;

ratchet-wheel hasholes N, drilled or formed A in it at thefront end of each vti'),0th,lthe pure pose of which is to'receive a small pin 0,

for turning the ratchet-wheel L, which. causes or produces the tension on the spring G, and arm or lever H. V Y

The spring is formed by starting in the center leaving what might. be termed a tongue or. projection P, and is coiled from the center out. The lower end of. the spring is securedto the lower end. of the pin F,and

the upper end lSiSGCllIGCl in {or to the under .65 or projection P, is insertedin aslot or groove in the rear end of the arm or leverH.= v I The main pin F, is then run throughs'aid side ofthe-ratchet-wheel L, and the tongue spring Gr, arm or lever I-Land ratchet-wheel L, after which it is secured in the lugs or shoulders D, and E.

; The backedge of the plate 0, is mined.

up and is provided with alsmall boltR, for

fastening ,the armor le ver H, back out of I engagement with the door when so'desired.

Retaining lugs are also formed onor in The spring proper is attached tothe door frame B, vbymeans of screws, and'the plate- K,.securedto the" stile of the doorby the same means. i

By removing the pin 0, from theretainer's S, and inserting the same into the holes in the ratchet-wheel L, any desired'tension may beplut onthearm or lever .that may be-desire I Having described invention, what I.

claim and desire to secure by Letters Pat'- ent is: i

"thedplate C, for holdinga pin 0, whichis for turningjup;the-tension---on"the v A new article of manufacture, in the nature of, a-door spring, comprising a plate i which is provided with lugs 01" shoulders" which are adapted to receive and hold-the ends of a-pin, aratchet-wheel secured to the upper end' of saidpin, a pawl-pivotally secured to the upper 111 or shoulder and engaging with said ratchet-wheel for holding same after the, tension has been put on, re-

taining' lugs formed in or on saidiplate' for holdingapin for turning said ratchetwheel,

a bolt on the back edge of the'plate forholcL ing the arm or lever out of engagement when not in use, together With an annular plate hand in the presence of two subscribing Witadapted to be secured to the door for receivnesses. ing a disc or Wheel in the end of the arm or lever, all substantially as shown and fortlie UHERUBINO MONTAGNA' 5 purposes-described. Witnesses: I

In testimony thatl claim theiforegoingcns P. D. SANTIs,

my own invention, I have hereuntossetimy LEE BARNES. 

